:root{--bg:#F4FAF8;--surface:#fff;--ink:#10231F;--muted:#4B635D;--brand:#0F766E;--brand-d:#0B5A54;--accent:#F97316;--accent-ink:#2A1200;--line:#D5E6E1;--r:14px;--f-head:Cairo,"IBM Plex Sans Arabic",Tahoma,sans-serif;--f-body:"IBM Plex Sans Arabic",Cairo,"Segoe UI",Tahoma,Arial,sans-serif}
@media (prefers-color-scheme:dark){:root{--bg:#0A1F1C;--surface:#0F2B27;--ink:#EAF5F2;--muted:#A3BDB6;--brand:#2DD4BF;--brand-d:#14B8A6;--line:#1F4A43}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.85 var(--f-body)}
a{color:var(--brand)}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;text-decoration:none}
.brand img{display:block;height:44px;width:auto;border-radius:8px}
.nav ul{list-style:none;display:flex;gap:4px;margin:0;padding:0}
.nav a{display:block;padding:8px 12px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:500}
.nav a:hover,.nav .current-menu-item a{background:var(--bg);color:var(--brand)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;font-size:1.2rem;padding:4px 12px;color:var(--ink)}
@media(max-width:640px){.nav-toggle{display:block}.nav{display:none;width:100%}.nav.open{display:block}.nav ul{flex-direction:column;padding-bottom:10px}}
main{padding-top:24px;padding-bottom:48px;min-height:60vh}
h1,h2,h3,.unit b{font-family:var(--f-head)}
h1{font-size:1.9rem;line-height:1.4;margin:.2em 0 .3em}
h2{font-size:1.4rem;margin:1.6em 0 .5em}
h3{font-size:1.1rem;margin:.2em 0}
.hero{background:linear-gradient(135deg,#0F766E,#0B5A54);color:#fff;border-radius:var(--r);padding:32px 22px;margin-bottom:20px}
.hero h1{margin:0 0 6px}.hero p{margin:0;opacity:.92}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;text-decoration:none;color:var(--ink)}
.card:hover{border-color:var(--brand)}
.card p{margin:.3em 0 0;color:var(--muted);font-size:.95rem}
.tag{background:var(--accent);color:var(--accent-ink);font-size:.75rem;font-weight:700;padding:2px 10px;border-radius:99px}
.prose{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px 18px}
.crumbs{font-size:.88rem;color:var(--muted)}
.updated{color:var(--muted);font-size:.9rem;margin:0 0 14px}
.answer{background:rgba(15,118,110,.09);border-inline-start:4px solid var(--brand);padding:12px 14px;border-radius:10px}
.counter{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0 6px;direction:rtl}
.unit{background:var(--brand);color:#fff;border-radius:var(--r);text-align:center;padding:14px 4px}
.unit b{display:block;font-size:2.3rem;line-height:1.2;font-variant-numeric:tabular-nums}
.unit span{font-size:.9rem;opacity:.9}
@media (prefers-color-scheme:dark){.unit{color:#052e2a}}
@media(max-width:420px){.unit b{font-size:1.7rem}}
.counter-msg{text-align:center;color:var(--muted);font-size:.92rem;margin:0 0 6px}
.picker{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:14px 0}
.picker select{font:inherit;padding:8px 12px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.picker .inline{display:flex;gap:6px;align-items:center}
table{display:block;width:100%;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border-collapse:collapse;margin:10px 0;font-size:.97rem}
th,td{border:1px solid var(--line);padding:9px 10px;text-align:right;vertical-align:top}
th{background:var(--bg)}
.checks{padding-inline-start:20px}.checks li{margin:.3em 0}
.faq details{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0;background:var(--bg)}
.faq summary{cursor:pointer;font-weight:700}
.faq details p{margin:.5em 0 0}
.source,.note,.small{color:var(--muted);font-size:.9rem}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);font-weight:700;padding:8px 18px;border-radius:10px;text-decoration:none}
.foot-logo{display:block;margin:0 auto 10px;height:40px;width:auto;border-radius:8px}
.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:20px 0;text-align:center}
.site-footer ul{list-style:none;display:flex;gap:16px;justify-content:center;flex-wrap:wrap;padding:0;margin:0 0 8px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
@media(max-width:640px){body{font-size:16.5px}.brand img{height:38px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.calc{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:14px;margin:14px 0}
.calc .row{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;margin:0 0 12px}
.calc label{font-weight:500;flex:1 1 100%}
.calc input,.calc select{font:inherit;padding:9px 12px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);flex:1 1 140px;min-width:0}
.calc input[type=number]{max-width:140px}
.calc button.btn{border:0;font:inherit;font-weight:700;cursor:pointer}
.result{background:var(--surface);border:2px solid var(--brand);border-radius:var(--r);padding:14px 16px;margin:12px 0}
.result .big{font:800 1.9rem/1.3 var(--f-head);color:var(--brand);margin:0}
.result.err{border-color:var(--accent)}
.result table{margin:8px 0 0}
caption{caption-side:top;text-align:right;padding-bottom:4px}
[hidden]{display:none!important}

/* ===== قالب المقالة (النموذج المعتمد 11/10/2026) ===== */
.single-post main.wrap{max-width:1120px}
.art .crumbs{padding:6px 0 4px}.art .crumbs a{color:var(--muted);text-decoration:none}
.art-layout{display:block}
.art article{min-width:0}
.art h1{font-size:1.75rem;line-height:1.5;font-weight:800;color:var(--brand-d);margin:6px 0 10px}
.art .meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.9rem;color:var(--muted);margin-bottom:18px}.art .meta b{color:var(--brand);font-weight:600}
.art .cover{width:100%;height:auto;aspect-ratio:16/9;border-radius:18px;display:block;margin-bottom:22px;background:var(--brand-d)}
.art .quick{background:var(--surface);border:2px solid var(--brand);border-inline-start-width:8px;border-radius:16px;padding:18px 20px;margin:0 0 22px}
.art .quick h2{font-size:.95rem;color:var(--accent);margin:0 0 4px;font-weight:700}.art .quick p{font-size:1.1rem;font-weight:500;margin:0}
.art .toc{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 20px;margin-bottom:26px}
.art .toc h2{font-size:1.05rem;margin:0 0 6px;color:var(--brand-d)}.art .toc ol{padding-inline-start:22px;margin:0}.art .toc a{text-decoration:none;color:var(--ink)}.art .toc a:hover{color:var(--brand)}
.art h2.s{font-size:1.45rem;color:var(--brand-d);margin:34px 0 10px;font-weight:800;scroll-margin-top:80px}
.art p{margin:0 0 14px}
.art .tbl{overflow-x:auto;margin:16px 0;border-radius:16px;border:1px solid var(--line);background:var(--surface)}
.art .tbl table{display:table;width:100%;border-collapse:collapse;margin:0}
.art .tbl th{background:var(--brand);color:#fff;font-family:var(--f-head);font-weight:700;padding:12px 14px;text-align:right;font-size:.95rem;border:0}
.art .tbl td{padding:12px 14px;border:0;border-top:1px solid var(--line);font-size:1rem}
.art .tbl tr:nth-child(even) td{background:var(--bg)}.art .tbl td.p{font-weight:700;color:var(--brand);font-family:var(--f-head)}
.art .fig{margin:18px 0}.art .fig img{width:100%;height:auto;border-radius:16px;border:1px solid var(--line);display:block}.art .fig figcaption{font-size:.88rem;color:var(--muted);margin-top:6px}
.art ol{padding-inline-start:24px}
.art .ex{background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden;margin:18px 0}
.art .ex .t{background:var(--accent);color:var(--accent-ink);font-family:var(--f-head);font-weight:700;padding:8px 18px;font-size:.95rem}
.art .ex .b{padding:16px 20px}.art .ex ul{list-style:none;margin:0;padding:0}.art .ex li{padding:5px 0;border-bottom:1px dashed var(--line)}.art .ex li:last-child{border:0}
.art .ex .r{background:var(--bg);border-radius:12px;padding:10px 14px;margin-top:12px;font-weight:600;color:var(--brand-d)}
.art .warn{display:flex;gap:12px;background:#FFF4EA;border:1px solid #FDC9A0;border-radius:14px;padding:14px 16px 14px 16px;margin:18px 0;font-size:.97rem;color:#3A1B05}
.art .warn::before{content:"";flex:none;width:26px;height:26px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F97316' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3 2 21h20L12 3z'/%3E%3Cpath d='M12 10v5M12 18h.01'/%3E%3C/svg%3E") center/contain no-repeat}
.art .cta{background:linear-gradient(135deg,#0F766E,#0B4F4A);color:#fff;border-radius:22px;padding:26px 22px;margin:30px 0;text-align:center}
.art .cta h2{font-size:1.45rem;margin:0 0 6px;color:#fff}.art .cta p{opacity:.92;margin:0 0 16px}
.art .cta .btn{padding:14px 30px;border-radius:14px;font-size:1.05rem;color:#fff;background:var(--accent)}
.art .cta .btn:hover{filter:brightness(1.08)}
.art .faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin:0 0 10px;padding:0}
.art .faq summary{cursor:pointer;padding:14px 18px;font-weight:600;font-family:var(--f-head);list-style:none;display:flex;justify-content:space-between;gap:10px}
.art .faq summary::-webkit-details-marker{display:none}
.art .faq summary::after{content:"+";color:var(--accent);font-size:1.4rem;line-height:1}.art .faq details[open] summary::after{content:"−"}
.art .faq details p{padding:0 18px;margin:0 0 14px}
.art .rel{display:grid;gap:12px;grid-template-columns:1fr}
.art .rel a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 18px;text-decoration:none;color:var(--ink);font-family:var(--f-head);font-weight:700}
.art .rel a small{display:block;font-family:var(--f-body);font-weight:400;color:var(--muted);font-size:.88rem;margin-top:2px}.art .rel a:hover{border-color:var(--brand)}
.art .src{font-size:.88rem;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;margin-top:26px}
.art aside{display:none}
@media(min-width:900px){
 .art h1{font-size:2.3rem}
 .art-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start}
 .art aside{display:block;position:sticky;top:84px}
 .art aside .toc{margin:0 0 16px}.art .toc.m{display:none}
 .art .cta.side{margin:0;padding:22px 18px}.art .cta.side h2{font-size:1.2rem}.art .cta.side p{font-size:.95rem}
 .art .rel{grid-template-columns:repeat(3,1fr)}.art .quick p{font-size:1.2rem}
}
@media(prefers-color-scheme:dark){.art .warn{background:#2A1A0E;border-color:#6B3B14;color:#F6DCC4}.art .tbl th,.art .cta{color:#fff}.art .tbl th{background:#0F766E}}
.pcard img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:10px;margin-bottom:10px}
.pcard .tag{display:inline-block;margin-bottom:6px}
.pcard h3{margin:.2em 0}.pdate{display:block;margin-top:8px;color:var(--muted);font-size:.85rem}
.cat-hero .crumbs{margin:0 0 10px;opacity:.9}.cat-hero .crumbs a{color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.chips a{padding:6px 14px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--ink);background:var(--surface);font-size:.95rem}
.chips a.on,.chips a:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ===== الرئيسية (2026-10-11) ===== */
.home main.wrap{max-width:1100px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.home .cards.pcards{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media(max-width:900px){.grid3,.home .cards.pcards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.grid3,.home .cards.pcards{grid-template-columns:1fr}}
.home .card{display:flex;flex-direction:column;align-items:flex-start;height:100%}
.home .card .tag{margin-bottom:6px}
.home .pcard .pdate{margin-top:auto;padding-top:8px}
.ticon{width:48px;height:48px;margin-bottom:8px}
.tcard:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(15,118,110,.14)}
.tcard{transition:transform .15s,box-shadow .15s}
.hero2{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:center;padding:36px 28px}
.hero2 h1{font-size:2.3rem}
.hero-cta{margin:18px 0 0!important;display:flex;flex-wrap:wrap;gap:10px}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-card{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:var(--r);padding:14px}
.hero-card .counter{margin:10px 0 4px;gap:8px}
.hero-card .unit{background:rgba(255,255,255,.18);color:#fff;padding:10px 2px}
.hero-card .unit b{font-size:1.7rem}
.hero-card .counter-msg{color:#fff;opacity:.9;margin:4px 0 0}
@media (prefers-color-scheme:dark){.hero-card .unit{color:#fff}}
@media(max-width:760px){.hero2{grid-template-columns:1fr;padding:26px 18px}.hero2 h1{font-size:1.9rem}}
.trust{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.trust li{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;border-inline-start:4px solid var(--brand)}
.trust strong{display:block;font-family:var(--f-head);margin-bottom:4px}
.trust span{color:var(--muted);font-size:.95rem}
@media(max-width:760px){.trust{grid-template-columns:1fr}}